Hot-blast stove



(Mmm) V. o. STROBBL. HOT BLAST STOV'E.

Patented Nov. l2, 1889.

Attorney n I EF l l l Yurrf O. Smal.'

Inventor ff /V/////// lv. Pneus Phnnrumgnpmr. wminpw. n. g

UNTTED STATES PATENT @ErrcE-I VICTOR. STROBEL, OF PHILADELPHIA, PENNSYLVANIA..

H OT-BLAST STOVE.l

SFECFICATION forming part of Letters Patent No. 414,734, dated November l 2, 1889.

Application tiled September 1l, 1889. Serial No. 323,610. (No model.) i

the following is a specification.

This invention pertains to improvements in regenerative hot-blast stoves designed i'or use in the heating of air, gas, (Sac.

My improvements will be readily understood from the following d esoription, taken in connection with the accompanying drawings, in Which- Figure l is a vertical section of a hot-blast stove embodying my improvements, the plane ofthe section being indicated by dotted line b ot other figures; Fig. 2, a similar section in the plane of line a; Fig. 3, a horizontal section in the plane of line c, and Fig. 4 a horizontal section in the plane ot line d.

In the drawings, A indicates the usual inclosing metallic shell .B, the lining-Wall thereof; C, the brick Hoor of the stove; D, a circular conibustion-chamber Wall concentrically disposed and extending i'rom the Hoor of the stove to near the root thereof 5 E, four radial Walls extending from the combustion-chamber Wall to theshell-wall and from the floor to the roof oi' the stove and forming foursegmental regenerator-chambers exterior to the combustion-chamber; F, a cylindrical lining at the base of the combostion-chamber, this lining forming What may be called the firepot of the co1nbustion-chamber; G, the combustion-chamber formed by the Wall D, this chamber extending from the iioor of the stove upward to near the roof ot' the., stove; Il, a pipe-connection from the exterior of the stove to the base of the combustion-chamber -to serve as a gas-inlet; J, a second similar connection to serve as a hot-blast outlet; K, openings through the bases of the radial Walls 141,'

whereby the entire base of the stove' around the combustion-chainber forms a series of chambers in free communication With each other; L, the arched roof of the combustionchamber; M, regenerator-work arranged in two vof the regenerator-chambers, this regenerator-Work extending from near the base of the stove to near the roof thereof; N, a pipe-connection at the top of the stove,

placing the exterior of the stove in communication with the two regel'lerator-passes M, this4 pipe-connection being designed to serve in common for the outlet of gas to the chimney and for the inlet for cold blast; O, the passage between the root of the stove and the Within the two cham bers intermediate of the chambers M, this regen erator-Work extending vertically, like the regenerator-Worl; lil-that is to say, from near the base of the stove to near the root' thereof; R, Fig. 4, radial walls arranged in the base of the stove exterior to the combristicii-chamber and extending' t rom the Hoor of the stove to the base of the regenerators, these walls serving to aid in supporting the regenerator-ivork, the walls being either solid or provided with openings like K, as desired; and S, openings at. the ends ot the arch L, extending vertically from the top of the regenerators P to the arch L and having a width equal to that of the combustionchamber, these openings placing the tops of the regenerator-passes P in free communica.- tion with each oth ,r and with the combustion-chamber. 4

The pipe-connection ll should have the usual gas-Valve; the pipe-connection J should have the usual hot-blast valve, and the pipeconnection N should have the usual chimneyvalve in one of its branches and the usual cold-blast. valve in the other of its branches. The pipe-connection H may, if desired, be branched to serve' as gas-inlet and hot-blast outlet, as is the common practice, and in such `case the pipe-connection J may be dispensed with.

Assume the stove to be cold. The cold-blastinlet valve and the hot-blast-ontlet valve are ducts of combustion go to the t-op of the combustion-chamber, then pass horizontally both Ways through the openings S to the top ol the regenerators P, then pass down the rc- IOO generator-passes P to the base of the stove, then pass horizontally through the openings K to the bases of the regenerator-passes M, then pass up the regenerator-passes M to the top of the stove, and then pass convergently therefrom through the passage 0 to the pipe-connection N, through which they pass to the chimney. generator-Work becomes heated. 'Vhen the stove is sufficiently heated, then the gas is shut off andthe chimney-Valve is closed. The

hot-blast valve and cold-blast valve are noW to be opened. The'cold blast enters the top of the stove at the pipe-connection N, and the current divides in the passage O and goes down the regenerator-passes M to the base of the stove, Where it passes through the openings K and goes up the regenerator-passes P to the top of the stove, where the two currents l. In a hot-blast stove, the combination, sub- A stantially as set forth, of a vertically-disposed metallic shell, a lining-Wall therefor, a pipeconnection at the top of the stove for chimneygases and cold-blast, a centrallydisposed vertical combustion-chamber, a pipe-connection at the base of the combustion-chamber for gas and hot blast, verticalwalls extendingradially During the process the repass of regenerator-Work on each opposite side of the combustion-chamber intermediate of the first-mentioned passes and communicating with each other and said top pipe-connection at the top of the stove and with said iirstmentioned passes at the base of the stove.

2. In a vertical hot-blast stove, the combination, substantially as set forth, of a circlilar Wall concentric with the stove-circle, roofarch L over the same and below the roof of the stove, pipe-connections N at the top of the stove, radial Walls E, regenerator-passes P, communicating-at the top with the combustion-chamber, regenerator-passes M, communicating at the bottom with said passes P and at the top with said pipe-connection, and pipe-connections at the base of the combustion-chamber.

3. In allot-blast stove, the combination, substantially as set forth, of a central combustion-chamber, pipe-connections at the base thereof, a pipe-connection at the top of the stove, and a circumferential series of regenerator-passes around the combustion-chamber, the alternate ones of said passes eommuni eating at the top with the combustion-chamber, and the intermediate ones of said passes communicating at their bases with the bases of said alternate passes and at their tops With said top pipe-connection.

VICTOR'O. STROBEL. Witnesses:

WM. E. KNoWLEs, W. A. LECHLER. 

